The iPort/USB is our fastest and most powerful I2C Bus
host adapter.
USB-IF
and Microsoft WHQL Certified, the
iPort/USB will operate with any Windows Vista, or XP PC. Typical applications
include product development and testing, EEPROM programming, device control
and sensor networking.

Over the past few years, the I2C Bus has expanded from simple
control to data intensive applications. As new uses arise, bus bandwidth
and message overhead have become key issues in product design and testing.
The iPort/USB, our fourth generation adapter for the I2C Bus,
addresses these issues by supporting several I2C bus speeds,
including
fast mode (400kbit/s), and
USB transfer rates up to 12 Mb/s. Implemented using a high-performance
bus co-processor with optimized instruction set, the adapter also includes
large message buffers (256 bytes) to reduce host computer and bus overhead.
In addition to operating as a bus master or slave in a multi-master system,
a built-in bi-directional /INT signal line
allows the device to receive or generate "slave only" device notifications.

Thanks to its USB-based Virtual Communications
Port (VCP) driver, the iPort/USB will work with RS-232 based
applications written for our iPort/AFM or iPort/AI I2C host
adapters. When operating with new application software that uses advanced
features, speed increases up to 100X faster are possible.

Start sending I2C messages in minutes using our Message
Manager or Message Center applications included with each adapter.
You can also use your computer's terminal emulation software (like Windows'
Hyperterminal Program), or create your own custom I2C applications
using any programming tool that can access your computer's (virtual) serial
port.